基于磁力研磨加工的法兰类零件表面质量的试验研究  

Experimental Study on the Surface Quality of Flange Parts Based on Magnetic Abrasive Machining

作　　者：秦璞 张桂香[1] 梁伟 姜林志 梁久平 滕潇 崔运涛 崔同磊 QIN Pu;ZHANG Guixiang;LIANG Wei;JIANG Linzhi;LIANG Jiuping;TENG Xiao;CUI Yuntao;CUI Tonglei(School of Mechanical Engineering,Shandong University of Technology,Zibo Shandong 255049,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255049

出　　处：《机床与液压》2020年第7期6-10,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51675316)。

摘　　要：管道、管件或器材连接处所使用的法兰盘在加工时因其内表面会产生微裂纹、褶皱等缺陷,导致使用寿命下降。用传统的抛光工艺难以实现对法兰盘管内表面的光整加工,使用磁力研磨加工工艺却可以很好地解决这一难题。通过对XK7136C数控铣床的主轴进行改造而成的研磨试验平台,其磁极主轴在给定数控程序的走刀路径下,带动侧面开槽的磁极进行转动,从而实现磁性磨粒对法兰盘管内表面光整加工的目的。对磁研磨法加工法兰盘管内表面的原理及磁性磨粒的受力情况进行了的分析,试验结果表明:法兰盘零件弯管内表面经过研磨后,原有的表面质量明显改善,表面粗糙度的值由3.46μm降低到1.18μm,验证了磁力研磨对法兰盘管内表面的光整加工效果良好。The flanges used in connection of pipes,pipe fittings or equipment will produce defects such as microcracks and folds on the internal surface during processing,which will lead to a decrease in service life.It is difficult to finish the internal surface of flange tube with traditional polishing process,but it can be realized by magnetic abrasive machining process.The grinding test platform was refitted from the spindle of the XK7136C CNC milling machine.In this grinding test platform,the magnetic pole spindle drives the magnetic pole with side slot to rotate under the given cutting path of numerical control program,so as to realize the purpose of finishing the internal surface of the flange tube with magnetic abrasive.The principle of machining flange tube surface and the force of magnetic abrasive were analyzed.The results show that the surface quality of the internal surface of the bend of flange parts is obviously improved after finishing,and the surface roughness is reduced from 3.46μm to 1.18μm,which is verified that magnetic grinding has a good effect on the internal surface finishing of the flange pipe.

关 键 词：磁力研磨 法兰盘 表面缺陷 主轴磁极 侧面开槽 

分 类 号：TG580.68[金属学及工艺—金属切削加工及机床]